October 2004 - Zope - Zope lists

ZOPECTL in daemon mode
by John Poltorak 20 Oct '04

20 Oct '04

If I want to run zopectl (from v2.7.0) in daemon mode, how do I pass a socket handle to zdctl? -- John

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ImportError: DBTab.ClassFactories.autoClassFactory
by Olivier Laurent 20 Oct '04

20 Oct '04

Hi, I installed Python 2.3.4 and Zope 2.7.2 on a Suse system. When trying to launch ./bin/runzope, I keep getting this error: Error: The object named by "DBTab.ClassFactories.autoClassFactory" could not be imported (line 865 in file:///var/local/lib/zope2.7/instances/mysite/etc/zope.conf) For help, use /usr/local/lib/zope2.7/lib/python/Zope/Startup/run.py -h Zope is installed from source and the Python installation come from: rpmbuild --rebuild python2.3-2.3.4-3pydotorg.src.rpm Here is the etc/zope.conf section that appear to cause the problem: <zodb_db main> # Main FileStorage database <filestorage> path $INSTANCE/var/Data.fs </filestorage> mount-point / </zodb_db> <zodb_db temporary> # Temporary storage database (for sessions) <temporarystorage> name temporary storage for sessioning </temporarystorage> mount-point /temp_folder container-class Products.TemporaryFolder.TemporaryContainer </zodb_db> When I follow what the error message asks me: python /usr/local/lib/zope2.7/lib/python/Zope/Startup/run.py -h I get this: Traceback (most recent call last): File "/usr/local/lib/zope2.7/lib/python/Zope/Startup/run.py", line 50, in ? run() File "/usr/local/lib/zope2.7/lib/python/Zope/Startup/run.py", line 17, in run from Zope.Startup import start_zope ImportError: No module named Zope.Startup I don't have a clue on what's going on. Can someone help me ? -- Olivier Laurent. P3B : Club Python(-Zope) Belge ---------- http://www.p3b.org OS3B : Club Open-Software(-Linux) Carolo http://www.os3b.org Aragne : Python-Zope Solutions & Formations http://www.aragne.com

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Accessing a macro slot from Python
by Bryn Thomas 20 Oct '04

20 Oct '04

Dear all, I'm trying to get a Zope Page Template to use a macro which is passed a few parameters that need to be accessed by Python. I was under the impression that "define-slot" and "fill-slot" where the appropriate ways of passing parameters, but I'm really struggling to use these slots from within Python expressions in the macro. My macro looks like so: <span metal:define-macro="pullActivityReport"> <tr tal:repeat="update python:container.get_updates_made(templateid=MYTEMPLATEIDSLOT)"> <td><span tal:replace="update/topicname">Topic Name</span></td> </tr> </span> While my main page looks like: <table> <span metal:use-macro="container/macroDefs/macros/pullActivityReport"> <span metal:fill-slot="MYTEMPLATEIDSLOT">22</span> </span> </table> Is such an amazing feat possible? I am currently using "tal:define global" to pass parameters but it seems like a less than desirable solution (global scope, etc...) Regards, Bryn

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python/ retrieving JPG from folder
by VIGNAUX Philippe 20 Oct '04

20 Oct '04

Hi all ! My zope config : Zope 2.6.4 (binary release, python2.1, win32-x86) I want to read the content of a folder (localfs) that contains pictures (JPG) to create thumbnails for these pictures. Nb : < remote > is the name of my zope local file system. for item in context.remote.fileValues(): print item.id return printed gives as result : Chateau.jpg Paradise.jpg Which is right. for item in context.remote.fileValues(): context.makethumbnail(item) gives the error message that you find below. (attribute error read) The < makethumbnail > external method has been tested and works FINE ! If I give as parameter for this method the result of <input type="file" name= ...... >, a thumnail is well created. So the problem is : what's the right way to give the picture itself listed in the folder contents, as parameter in my python code ???? Any help greatly appreciated ! Regards, Philippe. Exception Type AttributeError Exception Value read Traceback (innermost last): * Module ZPublisher.Publish, line 98, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 39, in call_object * Module Shared.DC.Scripts.Bindings, line 252, in __call__ * Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec * Module Products.PythonScripts.PythonScript, line 314, in _exec * Module Script (Python), line 3, in test <PythonScript at /afrigeopict/test> Line 3 * Module Products.ExternalMethod.ExternalMethod, line 231, in __call__ __traceback_info__: ((<LocalFile instance at 02D75CC8>,), {}, (100,)) * Module C:\PROGRA~1\zopedb01\Extensions\thumbnail.py, line 8, in makethumbnail * Module PIL.Image, line 1547, in open AttributeError: read ########################################### This message has been scanned by ICT - Africa Museum

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Re: R: [Zope-dev] Referencing a python method from a product page template
by Jens Vagelpohl 20 Oct '04

20 Oct '04

On Oct 20, 2004, at 11:37, Coletti Massimo wrote: > Solved ! > > There are some wrong info in Zope Developers Book. > > The solution is here: > http://mail.zope.org/pipermail/zope/2004-May/thread.html#149569 I've corrected it in the 2.7 book: http://www.plope.com/Books/2_7Edition/AdvZPT.stx#3-95 jens

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RE: [Zope] python/ retrieving JPG from folder
by VIGNAUX Philippe 20 Oct '04

20 Oct '04

Thanks for your proposal of the "photo and photo folder" product. I'll surely use it as I don't see any other possibility. But the goal was to know the bloody way to get the content of a picture and provide it as a parameter to a method. I can't believe it's not possible within Python as I'm so close to the solution ! for item in context.remote.fileValues(): context.makethumbnail(??item??) nb: item.id gives the name of the picture. I need to reach the content, i mean the picture itself. Ph. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org] On Behalf Of Garito Sent: mercredi 20 octobre 2004 10:33 Cc: zope(a)zope.org Subject: Re: [Zope] python/ retrieving JPG from folder VIGNAUX Philippe wrote: > Hi all ! > > My zope config : Zope 2.6.4 (binary release, python2.1, win32-x86) > > I want to read the content of a folder (localfs) that contains > pictures (JPG) to create thumbnails for these pictures. > > Nb : < remote > is the name of my zope local file system. > > for item in context.remote.fileValues(): > > print item.id > > return printed > > gives as result : > > Chateau.jpg > > Paradise.jpg > > Which is right. > > for item in context.remote.fileValues(): > > context.makethumbnail(item) > > gives the error message that you find below. (attribute error read) > > The < makethumbnail > external method has been tested and works FINE ! > > If I give as parameter for this method the result of <input > type="file" name= ...... >, a thumnail is well created. > > So the problem is : what's the right way to give the picture itself > listed in the folder contents, as parameter in my python code ???? > > Any help greatly appreciated ! > > Regards, > > Philippe. > > *Exception Type* > > > > AttributeError > > *Exception Value* > > > > read > > Traceback (innermost last): > > * Module ZPublisher.Publish, line 98, in publish > * Module ZPublisher.mapply, line 88, in mapply > * Module ZPublisher.Publish, line 39, in call_object > * Module Shared.DC.Scripts.Bindings, line 252, in __call__ > * Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec > * Module Products.PythonScripts.PythonScript, line 314, in _exec > * Module Script (Python), line 3, in test > *<PythonScript at /afrigeopict/test>* > *Line 3* > * Module Products.ExternalMethod.ExternalMethod, line 231, in __call__ > __traceback_info__: ((<LocalFile instance at 02D75CC8>,), {}, > (100,)) > * Module C:\PROGRA~1\zopedb01\Extensions\thumbnail.py, line 8, in > makethumbnail > * Module PIL.Image, line 1547, in open > > AttributeError: read > > ########################################### > > This message has been scanned by ICT - Africa Museum > >----------------------------------------------------------------------- - > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://mail.zope.org/mailman/listinfo/zope >** No cross posts or HTML encoding! ** >(Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > > Hi I asking myself if you need a product that creates thumbnails automatically I use Photo and Photo Folder, try it, perhaps it solves your problem Cheers _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ########################################### This message has been scanned by ICT - Africa Museum

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Question involving passing optional parameters to a zsql method
by Laura McCord 19 Oct '04

19 Oct '04

I have a form with 7 checkboxes. The more checkboxes are selected the more narrow of results you will get. I created a zsql method that will handle every case as far as when to include 'AND','OR', and '()'. The problem now is getting my form to execute the zsql method correctly. When I hit the submit button the boxes that are not check will trigger an error message stating that the variable was not defined. I am trying to figure out when I hit the submit button my dtml method that runs the zsql method is not written to adjust for empty parameters. I had originally called my function like this: <dtml-call expr="findResults(location1=location1, location2=location2, ..., usetype1=usetype1, usetype2=usetype2,...,active=active)"> Does anyone have an idea on how to call this function regardless of what boxes are checked? thanks.

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Products, Debug manager, and refcounts
by Jim Abramson 19 Oct '04

19 Oct '04

Hello list, I've done large amounts of googling on the subject, but I can't find any simple explanation of what the Debug Manager is actually telling me concerning refcounts. It's clear from various sources that, if between REQUESTs one sees a significant jump for a particular type's refcount, there's clearly a problem. (Please feel free to correct me if this is an oversimplification.) What's not clear is what one should normally expect. I make use of some python modules from Zope, generally using the following pattern: [python script] from Products.MyProduct import facademodule try: result = facademodule.doSomething(inputParams) return result finally: del facademodule [facademodule.py] def doSomething(inputParams): import coremodule coreObject = coremodule.CoreClass() try: resultValue = coreObject.doSomething(inputParams) returnValue = {'resultValue':resultValue} del resultValue return returnValue finally: del coreObject del coremodule In the above example, I'm making hyper-vigilant use of 'del' to avoid keeping unneccessary references around. The facademodule's job is simply to send back the results of operations using primitive builtin types (int, list, dictionary) - because a) I don't want my user interface dependent on the coreObjects' structure; b) coremodule should be reusable outside the Zope process; and c) I don't want obsolete object references floating around. After all this, however, I go to the Debug Manager and see that with every REQUEST to a page which makes use of this pattern somewhere, the refcounts for all manner of coremodule's Classes involved in the facademodule's work appear to be incremented by 1. (ex. after a REQUEST using the above pattern I'll see the reference count for Products.MyProduct.coremodule.CoreClass go up by 1.) So, is this normal and expected? Or is it more likely that circular references in my code are causing the instances to be left hanging around? Is there some other approach that's recommended for using my own objects (residing outside of ZODB) and not bloating RAM, however slowly this may happen? Thanks for any clues, Jim

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HTTPServer exception - illegal argument
by Niklas Saers 19 Oct '04

19 Oct '04

Hi all, after having had Zope up and running for about an hour, it dies with the following exception. I was wondering if you could point me to common problems that can result in this? I'm running it inside a FreeBSD 5.3-BETA jail, using Python 2.3.4 with large stack support, Zope 2.6.2 (CMF 1.3.2) from ports. All clues would be very helpful. :) Cheers Nik Traceback (most recent call last): ------ File "/usr/local/www/Zope/lib/python/Zope/Startup/run.py", line 50, in ? 2004-10-19T09:01:20 ERROR(200) ZServer uncaptured python exception, closing channel <ZServer.HTTPServer.zhttp_channel connected 80.198. 103.30:15408 at 0x882074c channel#: 1 requests:> (socket.error:(22, 'Invalid argument') [/usr/local/lib/python2.3/asyncore.py|write|77] [/usr/local/lib/python2.3/asyncore.py|handle_write_event|397] [/usr/local/lib/python2.3/asynchat.py|handle_write|152] [/usr/local/lib/ python2.3/asynchat.py|initiate_send|213] [/usr/local/lib/python2.3/asynchat.py|refill_buffer|200] [/usr/local/www/Zope/lib/python/ZServ er/Producers.py|more|34] [/usr/local/www/Zope/lib/python/ZServer/medusa/http_server.py|log|292] [/usr/local/www/Zope/lib/python/ZServer /medusa/logger.py|log|246] [/usr/local/www/Zope/lib/python/ZServer/medusa/resolver.py|resolve_ptr|349] [/usr/local/www/Zope/lib/python/ ZServer/medusa/resolver.py|resolve_ptr|260]) run() File "/usr/local/www/Zope/lib/python/Zope/Startup/run.py", line 19, in run start_zope(opts.configroot) File "/usr/local/www/Zope/lib/python/Zope/Startup/__init__.py", line 67, in start_zope Lifetime.loop() File "/usr/local/www/Zope/lib/python/Lifetime.py", line 43, in loop lifetime_loop() File "/usr/local/www/Zope/lib/python/Lifetime.py", line 53, in lifetime_loop asyncore.poll(timeout, map) File "/usr/local/lib/python2.3/asyncore.py", line 125, in poll write(obj) File "/usr/local/lib/python2.3/asyncore.py", line 81, in write obj.handle_error() File "/usr/local/www/Zope/lib/python/ZServer/medusa/http_server.py", line 440, in handle_error asynchat.async_chat.handle_error (self) File "/usr/local/lib/python2.3/asyncore.py", line 420, in handle_error self.close() File "/usr/local/www/Zope/lib/python/ZServer/HTTPServer.py", line 342, in close p.more() # free up resources held by producer File "/usr/local/www/Zope/lib/python/ZServer/Producers.py", line 34, in more getattr(self.logger, self.method)(self.bytes) File "/usr/local/www/Zope/lib/python/ZServer/medusa/http_server.py", line 292, in log '- %s [%s] "%s" %d %d "%s" "%s"\n' % ( File "/usr/local/www/Zope/lib/python/ZServer/medusa/logger.py", line 246, in log self.logger File "/usr/local/www/Zope/lib/python/ZServer/medusa/resolver.py", line 349, in resolve_ptr callback File "/usr/local/www/Zope/lib/python/ZServer/medusa/resolver.py", line 260, in resolve_ptr (self.server, 53) socket.error: (22, 'Invalid argument')

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RE: [Zope] Calling a zsql with optional fields
by Laura McCord 19 Oct '04

19 Oct '04

Thanks, this idea worked perfectly for me. -Laura -----Original Message----- From: Thierry FLORAC [mailto:tflorac@onf.fr] Sent: Tuesday, October 19, 2004 11:19 AM To: Laura McCord Cc: zope(a)zope.org Subject: Re: [Zope] Calling a zsql with optional fields Hi, I think that I already made this kind of thing working with a simple : <dtml-in "findResults(REQUEST.form)"> ... </dtml-in> (if "findResults" is the name of your ZSQLMethod component...) Thierry On Tue, 2004-10-19 at 18:11, Laura McCord wrote: Ok. I redesigned my zsql method to be much simpler: select * from host <dtml-sqlgroup where> <dtml-sqltest name="location1" column="site" type="nb" optional> <dtml-or> <dtml-sqltest name="location2" column="site" type="nb" optional> <dtml-or> <dtml-sqltest name="location3" column="site" type="nb" optional> <dtml-and> <dtml-sqlgroup> <dtml-sqltest name="usetype1" column="UseType" type="nb" optional> <dtml-or> <dtml-sqltest name="usetype2" column="UseType" type="nb" optional> <dtml-or> <dtml-sqltest name="usetype3" column="UseType" type="nb" optional> </dtml-sqlgroup> <dtml-and> <dtml-sqltest name="active" column="Active_Inactive" type="int" optional> </dtml-sqlgroup> My form is a combination of checkboxes: <form action="resultsPage"> <table> <tr> <td>Select any of the following combinations:</td> </tr> </table> <table> <tr> <td>Active:</td> <td><input type="checkbox" name="active" value="1" checked="checked">Active</td> </tr> <tr> <td>Site:</td> <td><input type="checkbox" name="location1" value="aus">Austin </td> <td><input type="checkbox" name="location2" value="ca">California</td> <td><input type="checkbox" name="location3" value="mass">Massachusetts</td> </tr> <tr> <td>UseType:</td> <td><input type="checkbox" name="usetype1" value="server">Server</td> <td><input type="checkbox" name="usetype2" value="cad"> CAD</td> <td><input type="checkbox" name="usetype3" value="base">Base</td> </tr> <tr> <td><span><input type="submit" class="submitLink" value="save"></span></td> </tr> </table> </form> The only problem I am having is bridging the two in order to get my results. I have a dtml method that I am trying to process the zsql method but I don't think I am doing it correctly. <dtml-call expr="findResults(location1=location1, ..., usetype1=usetype1, ...,active=active)"> But, with the above if location2 or any of the boxes are not selected I am getting an error that they are not defined. How do I correct this problem? Thanks You. _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope <http://mail.zope.org/mailman/listinfo/zope> ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce <http://mail.zope.org/mailman/listinfo/zope-announce> http://mail.zope.org/mailman/listinfo/zope-dev <http://mail.zope.org/mailman/listinfo/zope-dev> )

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